use*_*265 10 c# wpf graphics screenshot bitmap
以下方法取自WinForms应用程序.它只是捕获屏幕,但我需要修改它以在WPF应用程序中工作.当我使用它时,它会返回一个黑色图像.尺寸是正确的.我没有任何打开的DirectX或视频,即使在我的桌面上它也无法正常工作.
public static Bitmap CaptureScreen()
{
// Set up a bitmap of the correct size
Bitmap CapturedImage = new Bitmap((int)SystemParameters.VirtualScreenWidth,
(int)SystemParameters.VirtualScreenHeight, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
// Create a graphics object from it
System.Drawing.Size size = new System.Drawing.Size((int)SystemParameters.VirtualScreenWidth, (int)SystemParameters.VirtualScreenHeight);
using (Graphics g = Graphics.FromImage(CapturedImage))
{
// copy the entire screen to the bitmap
g.CopyFromScreen((int)SystemParameters.VirtualScreenWidth, (int)SystemParameters.VirtualScreenHeight, 0, 0,
size, CopyPixelOperation.SourceCopy);
}
return CapturedImage;
}
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谁能用我的方式向我显示错误?